-98.94% is the change from 939 to 10
Calculation steps:
[( 10 - 939 ) ÷ 939] x 100 = -98.94%
Formula
Percentage change = [(10 - 939) / 939] x 100
Subtract the new number by the original number
10 - 939 = -929
-929 ÷ 939 = -0.9893503727369543
-0.9893503727369543 x 100 = -98.94%